J. Dewey is a manufacturer of fine cleaning supplies for air rifles, rim fire and shotguns. Often referred to as j dewey for short, this company makes some of the finest air gun cleaning rods a shooter can buy. Their cleaning rods come in different lengths and caliber sizes to accomodate any airgun selection. And they are made of a material that won't harm air gun barrels. These j dewey rods come with a pointed jag that can be used with patches of various sizes and brass loops are available as options for those that prefer them to the pointed jags. We use j dewey rods in the shop and can attest to their toughness and quality.